[1] http://www.techz.vn/internet-of-things-la-gi-tai-sao-no-se-la-xu-huong-cua-tuong-lai-qv1-ylt41541.html
[2] https://tinhte.vn/threads/internet-of-things-la-gi-va-no-co-anh-huong-nhu-the-nao-trong-cuoc-song-cua-chung-ta.2129417/
[3] http://automation.net.vn/CNTT-voi-TDH/Mot-so-net-khai-quat-ve-chuan-Zigbee.html
[4] https://itp.nyu.edu/physcomp/labs/labs-serial-communication/lab-serial-communication-with-node-js/